Copying machine



R. BERGER.

COPYING MACHINE.

APPLICATION FILED Nov.2, ma.

Patented Apr. 18, 1922.

` faveafar Mm eyer LA f/lhwy UNITED STATES .sarsnr osi-fies.

BICI-IARD BERGER, QF BONN-ON-TI-IE-RI-IINE, GERMANY. ASSZGNB T0 FIRM F. SOENNECKEN, OF BONN-ON-THE-RHINE, GERMANY.

COYNG MACHINE.

laisses.

Speci'cation of Letters Patent. Pitti-@pugni Apr, 1&5, 'i3/em.,

ratas) Application led November 28, 1913.A Serial No. 803,591.

To alt Lo/lam t may con-cem.'

Be it known that I, RICHARD BERGER, a subject ci the King of Bavaria, and resident at Bonn-on-the-Rhine, Venusbergweg 23, Germany, have invented certain new and useful Improvements in Copying Machines, with means ior cutting ott' sheets of any desired length.

The invention relates to a copying chine with means for cutting oit sheets, ot any desired length.

In the annexed drawings.

Fig. jl.-shows diagram of the copying machine.

Fig. 2.-a front elevation of the controlling mechanism.

3.shows a detail.

According to the invention, a screw driven by the machine is employed, having intersecting right and left handed screw threads. In the grooves of these screw threads runs to and fro a tongue or shoe, which is turned vby two stops one of which is adjustable so that the travel of the tongue can be prolonged or shortened while the machine is in constant motion, The tongue is in this case reversed by the controlling element of the various auxiliary devices which should operate according to the length of the copying sheet in each case.

The arrangement can be such that the tongue as soon as it arrives in the end position shall effect the control of all the auxiliary devices by the reversal of a single machine element. Since however under all circumstances a given shortest travel o't the tongue must be taken as a basis the arrangement may be such that the several auxiliary devices are separately controlled by the tongue at diierent points in .its travel. Only those parts of the copying machine are shown which are necessary for a clear understanding of the arrangement. The web of paper n passes between the three rolls a, b, c

and then proceeds to a cutting or separating 'j device or to a reel. Above the roll a is mounted in bearings a screw l having intersecting right and left handed screw threads. The screw is driven by the shaft of the roll a through spur wheel gearing 2, 3. A tongue 4, well-known per se. runs in the helical grooves (Fig. 3) and is provided with a. cylindrical shank 5 mounted so as to be capable of rotation in a slide 6 which is mounted so as to be capable of sliding upon a bar rigid with ythe frame. The shank 5 ci' the tongue has -at its upper end a i'orwardly bent arm 51. As the slide 6 moves to and tro on the bar 7 the arm 51 strikes alternately a buffer spring 8 located on the lei't hand ci the machine and a like spring 9 located on the right hand of the machine. T he latter spring is mounted upon a slide 1f) adjustably arranged upon a rail 11 provided with a graduated scale adapted to indicate the length of a sheet of paper separated by a cutting device for example.

The slide 6 is provided with another' striking piece l2 by which, when in the extreme lett hand position, it engages with the end 131 of a rod 13 capable of sliding endwise in the frame of the machine. The rod 13 rests normally under the influence of a spring le but is moved to the left by the slide 6. 12y in order to Vset in motion or in general. to govern in any suitable manner'the auxiliary or secondary devices.

When the screw I is caused. to rotate in the direction of the arrow shown in Fig. 2 the slide 6 being in the position indicated., the tongue 4 by means of the left handed screw thread will be moved towards the right hand. This movement is continued until the arm 51 on the shank 5 strikes against the buffer spring This spring is thereby put under stress and reverses the tongue as soon as the latter arrives at the nearest intersection of the screw threads (see Fig. The tongue in turning enters the right handed helical groove and is thereby moved towards the left hand. Towards the end of this movement. the striker 12 on the slide 6 pushes the rod 13. 131 towards the left. rlhe arm 51 on the shank 5 is now however again reversed by the left hand buiier spring 8 as soon the tongue has arrived at an intersection ot the screw threads and is in a position to permit this rotary movement. Theseries of movements then recommence.

rl`he arrangement can obviously he also carried out by making both the stops 8 and 9 controlling the tongue adjustable. In practice Vhowever it will be found suiiicient it one of these two spring stops be made adjustable. In order to control several auxiliary devices of the machine at dierent moments all that is required are corresponding controlling striking pieces formed substantially in a similar manner to the rod 13 which is normally at 'rest under the intluence of a spring and distributed over the travel or stroke of the tongue t or ot its' shank 5 or its slide 6.

I claim:

l. In combination, a copying machine including a plurality of rollers and auxiliary devices, a shaft provided on its periphery With intersecting' right and lett hand screw threads, means betweenone ot the rollers and the shaft for rotating the latter, a guide, a slide mounted on the guide, a pivoted shoe depending from the slide, means tor partially rotating the shoe at the end of, its sidevvise movement to cause it to lregisterl with the respective screw threads, and a slidable trip in the path of movement o't the slide and Which is struck by the latter upon each complete reciproeation to start the aux- Viliary devices.y

2. In combination, a copying machine includinga plurality of rollers and auxiliary devices, a shaft provided on its periphery with intersecting right and left hand screv7 threads, means between one of the rollers threads, and a trip located in the path of the l slide to start the auxiliary devices.

In testimony whereof l have hereunto set my hand in presence of two Witnesses. Y

RICHARDBERGEB; s Vitnesses: A Y

LoUIs VANDORF, AUGUST VEAKEN. 

